Arrangement in wall and ceiling panellings



Oct. 2, 1962 J. FISCHER ARRANGEMENT IN WALL AND CEILING PANELLINGS FiledJuly 25. 1957 Unitcd rates Patent 3,056,476 ARRANGEMENT IN WALL ANDCEILING PANELLTNGS Jean Fischer, Sankt Clemens, Denmark Fiied Juiy 25,1957, Ser. No. 674,189 Claims priority, application Denmark Aug. 1, 1956Claim. (Cl. 189-86) For sound-deadening wall or ceiling panellings, longrectangular aluminium panels are often preferred to panellings of woodfibre plate or similar material due to the strongly reduced or possiblycompletely eliminated risk of tire of the aluminium panelling. Themounting of such aluminium panels has, however, hitherto been rathercumbersome, and the mounting work has therefore enhanced the costs ofthe finished panelling considerably.

The purpose of the invention is to avoid such mounting difliculties orin other words to provide a sounddeadening panelling, in which themounting of the individual panels can be performed exceedingly easilyand quickly, while likewise a dismounting, in case of need, for exampleto provide access to a sound-quenching layer of material above or behindthe panels, will give only little trouble.

Thus, the invention relates to an arrangement in wall or ceilingpanellings consisting of generally elongated rectangular panels of thinsheet material such as aluminium plate, the said panels beingtrough-shaped to be able to accommodate sound-quenching material andbeing at one end tacked on, or secured in other manner, to the wall orceiling surface or to a system of rails on the latter while at the otherend the panels are carried by the adjacent end, secured to the support,of one or more adjacent panels. According to the invention, thearrangement is characterised in that at their first-mentioned end thepanels are provided with a number of attachment lugs projecting from theend and are at their other end provided with one or more projectingcarrying lugs engaging between the attachment lugs on the edge of one ormore adjacent panels. During the mounting work the carrying lugs on onepanel are only inserted between the attachment lugs of a panel alreadymounted, whereupon the opposite end of the former panel is secured tothe ceiling or Wall surface or to its rail system by means of tacks,staples, or similar means.

A panel construction is already known (from German specification No.11,698) consisting of a number of plates which at one end aredouble-bent to form a pocket for receiving the slightly oif-set otherend of the neighbouring plate. A similar arrangement of assembly may beprovided at the other edges of the plate. This known arrangement doesnot, as is the case with the arrangement according to the invention,produce an intertwinement of the attachment lugs and the carrying lug-s,and the arrangement according to the invention further possesses theadvantages that some material is saved and that the manufacture of theplates is made cheaper in that the invention does not require the doublebending of one plate edge to form a pocket.

A particular embodiment of the invention is characterised in that thecarrying lugs have substantially the same Width as the spacing betweenthe adjacent attachment lugs, in this case, the engagement orintertwinement between the carrying lugs and the attachment lugs willduring the mounting automatically ensure a correct placing of a newpanel in relation to one or more panels already mounted.

The invention will be more fully explained with reference to theaccompanying drawing on which:

FIG. 1 shows an axonometric illustration of part of a ceiling panellingwith the arrangement according to the invention during the mounting,

FIG. 2, a vertical section, eg as indicated by the line 11-11 in FIG. 1,through a wooden rail secured to the ceiling and the end portions,carried by the said rail, of two panels, and

FIG. 3, part of a ceiling panelling according to the invention in amodified embodiment, viewed from below.

According to FIG. 1 a number of parallel, equidistant carrying rails 1of wood are secured to a ceiling surface, not shown, in some appropriatemanner, and to these carrying rails elongated, rectangular aluminiumpanels 2 are secured, each of which has a length corresponding to twicethe spacing between the rails 1 and which are mounted in rows incontinuation of each other and with the butts staggered in two adjacentrows. The length and width of the individual panels may for example beabout 60 cm. and about 10 cm., respectively, and by a simple pressingoperation or otherwise they have been given the trough-shape shown onthe drawing with a substantially plane bottom and four side walls atright angles to the latter, the said side walls being connected with thebottom through obliquely extending sections, see also FIG. 2.

Each of the panels 2 is at one end provided with three attachment lugs 3which are tacked on to the overlying carrying rail 1. At the oppositeend the panels comprise two projecting carrying lugs 4 which during themounting, see the panel 2' in FIG. 1, are inserted between theattachment lugs 3 on the panel 2" already mounted and will thus rest onthe edge of the end wall of the latter panel. When the panel 2 has beenbrought into this position, the other end, not shown on the drawing, issecured to the overlying rail 1 by means of tacks 5, FIG. 2, in theattachment lugs at the end of the said panel.

The panels may in a well-known manner be provided with suitableperforations in the bottom, and during the mounting there may in or overthe panels be placed a sound-quenching material suited to theconditions.

As will appear from FIG. 1, compare the panel 2 which is being mounted,the panels may prior to the mounting, be slightly curved in theirlongitudinal direction so that their central parts are above the planedefined by lugs 3 and 4. In doing so, the panels are slightly strainedwhen being mounted because the central parts of the panels are pressedagainst the overlying carrying rails 1. A particular advantage obtainedhere by is that, especially in the case of comparatively long panels, anot insignificant saving of material may be obtained owing to anincreased rigidity against the bending down of the panels between theirsupported ends.

The curvature of the panels need only be very slight so that thestraightening deformations to which the panels are exposed during themounting will be slight too.

The panels 6 shown in FIG. 3 may be designed exactly like the panels 2in FIGS. 1 and 2 with the only difference that the number of carryinglugs at one end of the panel is equal to the number of attachment lugsat the other end of the panel so that the two ends of the panel are infact identical. As the carrying lugs are located in line with thespacings between the attachment lugs, it does not matter, during themounting of a panel, whether its attachment lugs or carrying lugs arebrought into engagement with a panel already mounted.

FIG. 3 further shows that the panels may be arranged in rows extendingat right angles to the longitudinal direction of the panels. The jointsbetween the panels of these rows may lie in extension of each other asindicated in FIG. 3 or may be displaced from row to row.

At the edges of the wall or ceiling surface on which the panelling isarranged, ornamental lists may, if so desired, be provided to supportthe ends or edges of the panels or to conceal the attachment lugs.

I claim:

A ceiling composed of a plurality of spaced parallel stringers havingco-planar lower faces, and a plurality of sheet metal panelling elementsarranged end to end in parallel rows, the elements in one row beingstaggered with respect to those of the adjoining rows, each elementextending lengthwise from one stringer across a second stringer to athird stringer, each element comprising an elongated rectangular bodyportion normally slightly curved in its longitudinal direction with theconvex side of the curve facing the stringers, a first pair of bentoverflanges extending along the opposite end edges of said body portion andprotruding on the convex side thereof, and another pair of bent-overflanges extending along the opposite side edges of said body portion andalso protruding on the convex side thereof and engaging against thelower face of the second stringer, said flanges being of equal height,one of the flanges of said first pair of flanges having a plurality ofspaced tongues projecting outwardly from the flange in the longitudinaldirection of the element, and the other flange of said first pair offlanges having at least one tongue projecting outwardly from the flangein the longitudinal direction of the element and being of a widthsubstantially equal to the space between said plurality of tongues,means securing the tongues of one of the flanges of the first pairdirectly to the first stringer, the tongues of the other of the flangesof the first pair of the next succeeding end-to-end element engagingbeneath such flange, and means securing the tongues of the other of theflanges of the first pair of such succeeding element directly to thestringer, said element being thereby deformed out of its normally curvedshape into a flat shape, thereby preventing sagging of the central partof the element, and the lower faces of all the elements being co-planar.

References Cited in the file of this patent UNITED STATES PATENTS Re.23,568 Kinghorn Oct. 28, 1952 458,448 Ewing Aug. 25, 1891 841,490 tDuMontier Jan. 15, 1907 2,181,451 DOW Nov. 28, 1939 FOREIGN PATENTS302,524 Italy Oct. 31, 1932 473,700 Great Britain Oct. 19, 1937

